diff options
author | Joe Kyo <xunianzu@gmail.com> | 2017-11-15 10:24:21 +0000 |
---|---|---|
committer | Brad Fitzpatrick <bradfitz@golang.org> | 2017-11-16 01:31:52 +0000 |
commit | a8474c799f82c543379ef4a355dc7b5be785d8d8 (patch) | |
tree | c679f26d7f4d620f05b847b827da771ca94ac80b /src/archive | |
parent | c2eb9454a99543281702413fdb8267366870ce48 (diff) | |
download | go-a8474c799f82c543379ef4a355dc7b5be785d8d8.tar.gz go-a8474c799f82c543379ef4a355dc7b5be785d8d8.zip |
archive/zip: add documentation about compression methods
Change-Id: I491c5ddd1a5d8e55f8e6bb9377bc3811e42773f8
Reviewed-on: https://go-review.googlesource.com/77870
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Diffstat (limited to 'src/archive')
-rw-r--r-- | src/archive/zip/struct.go | 10 | ||||
-rw-r--r-- | src/archive/zip/writer.go | 1 |
2 files changed, 8 insertions, 3 deletions
diff --git a/src/archive/zip/struct.go b/src/archive/zip/struct.go index 00c15e4931..63fa0b3b4d 100644 --- a/src/archive/zip/struct.go +++ b/src/archive/zip/struct.go @@ -27,8 +27,8 @@ import ( // Compression methods. const ( - Store uint16 = 0 - Deflate uint16 = 8 + Store uint16 = 0 // no compression + Deflate uint16 = 8 // DEFLATE compressed ) const ( @@ -102,7 +102,9 @@ type FileHeader struct { CreatorVersion uint16 ReaderVersion uint16 Flags uint16 - Method uint16 + + // Method is the compression method. If zero, Store is used. + Method uint16 // Modified is the modified time of the file. // @@ -153,6 +155,8 @@ func (fi headerFileInfo) Sys() interface{} { return fi.fh } // Because os.FileInfo's Name method returns only the base name of // the file it describes, it may be necessary to modify the Name field // of the returned header to provide the full path name of the file. +// If compression is desired, callers should set the FileHeader.Method +// field; it is unset by default. func FileInfoHeader(fi os.FileInfo) (*FileHeader, error) { size := fi.Size() fh := &FileHeader{ diff --git a/src/archive/zip/writer.go b/src/archive/zip/writer.go index ad8457c95a..ebb2a2edd0 100644 --- a/src/archive/zip/writer.go +++ b/src/archive/zip/writer.go @@ -202,6 +202,7 @@ func (w *Writer) Close() error { // Create adds a file to the zip file using the provided name. // It returns a Writer to which the file contents should be written. +// The file contents will be compressed using the Deflate method. // The name must be a relative path: it must not start with a drive // letter (e.g. C:) or leading slash, and only forward slashes are // allowed. |